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Nitrous Oxide Emissions from Light Duty Vehicles
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 01, 1994 by SAE International in United States
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Recent evidence has linked vehicle catalysts to nitrous oxide emissions. As the population of catalyst-equipped vehicles increases, so does the need for a better understanding of this powerful greenhouse gas.
Nitrous oxide measurements were made on fourteen vehicles over the FTP urban and highway cycles utilizing an FTIR analyzer. To quantify emissions from aged catalysts, emphasis was placed on testing in-use vehicles with oedometer readings between 30,000 and 120,000 kilometres. Tailpipe N2O emissions averaged 126 mg/mile for the nine aged catalyst vehicles and 74 mg/mile for the five new catalyst cars. These results are about two times greater than previous N2O studies using the FTP cycle. Also, twice as much N2O was produced during the urban driving cycle, than during the highway cycle.
Based on our measurements, N2O emissions from light duty vehicles in Canada were estimated to range from 8 to 20 kilotonnes for 1992. Pre- and post-catalyst measurements confirm that N2O is formed during the catalytic reduction process.
|Technical Paper||Methane and Nitrous Oxide (N20) Emission Characteristics from Automobiles|
|Technical Paper||N2O Emissions from Vehicles Equipped with Three-Way Catalysts in a Cold Climate|
CitationBallantyne, V., Howes, P., and Stephanson, L., "Nitrous Oxide Emissions from Light Duty Vehicles," SAE Technical Paper 940304, 1994, https://doi.org/10.4271/940304.
- Environment Canada The State of Canada's Environment Ottawa 1991
- Environment Canada and Transport Canada “A Plan to Identify and Assess Emissions Reduction Opportunities from Transportation, Industrial Engines and Motor Fuels” Ottawa 1989
- De Soete, G. “Updated Evaluation of Nitrous Oxide Emissions from Industrial Fossil Fuel Combustion” Institut français du pétrole 1989
- Jacques, A.P. “Canada's Greenhouse Gas Emissions: Estimates for 1990” Environment Canada Ottawa 1992
- Prigent, M. De Soete G. “Nitrous Oxide (N 2 O) in Engines Exhaust Gases - A First Appraisal of Catalyst Impact” Society of Automotive Engineers, Technical Paper Series 890492 1989
- Dasch, J.M. “Nitrous Oxide Emissions from Vehicles” Journal of Air Waste Management Association 42 63 67 January 1992
- Howes, Peter “Evaluation of Nitrous Oxide Emissions from Light Duty Vehicle Engine Exhaust” Environment Canada, Mobile Sources Emissions Division Ottawa 1993
- Cho, B.K. Stock, C.J. “Transient Study of NO Decomposition over Supported Noble Metal Catalysts” General Motors Research Laboratories Publication GMR-5497 1986
- Philpott, Sharon MOBILE 5C User Guide Environment Canada, Transportation Systems Division Ottawa 1993